Parrots are already known for their mimicry of transitive actions, such as grabbing an object. Because they are highly social creatures with brains that are large relative to the size of their bodies, ...
There is a theoretical reason for this, but it lies beyond scope of this class. Ergative verbs include: go, walk, run, swim, work, crawl, sleep (all of these verbs must be intransitive to be ergative) ...
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